HEB 320 — Dimensions, Weight & Section Properties
HEB wide-flange beam per EN 10365 (DIN 1025-2)
HEB 320 is a HEB wide-flange beam per EN 10365 (DIN 1025-2), 320 mm tall and 300 mm wide, weighing 127 kg per meter. All dimensions and section properties below are the standard published values used in structural design across Europe.
Typical uses: floor beams, columns, frames, and general steel construction. For a quick strength check, use the deflection example below or open the beam calculator with your own span and load.
Dimensions (mm)
| Height h | 320 mm |
| Flange width b | 300 mm |
| Web thickness tₘ | 11.5 mm |
| Flange thickness tᶠ | 20.5 mm |
| Root radius r | 27 mm |
Weight & Cross-Section
| Weight per meter | 127 kg/m |
| Weight of a 6 m bar | 762 kg |
| Weight of a 12 m bar | 1,524 kg |
| Cross-section area A | 161 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 30,820 cm⁴ |
| Section modulus Wₓ | 1,926 cm³ |
| Radius of gyration iₓ | 13.8 cm |
| Moment of inertia Iᵧ | 9,239 cm⁴ |
| Section modulus Wᵧ | 616 cm³ |
| Radius of gyration iᵧ | 7.57 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| HEB 300 | 300 × 300 | 117 | 25,170 | 1,678 | −8 % | −18 % |
| HEB 320 (this page) | 320 × 300 | 127 | 30,820 | 1,926 | — | — |
| HEB 340 | 340 × 300 | 134 | 36,660 | 2,156 | +6 % | +19 % |
Deflection example
A simply supported HEB 320 spanning 6 m with a 10 kN point load at midspan deflects 0.7 mm (E = 210 GPa, Ix = 30,820 cm⁴). The L/360 serviceability limit for this span is 16.7 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does HEB 320 weigh?
HEB 320 weighs 127 kg per meter. A standard 6 m bar weighs 762 kg and a 12 m bar 1,524 kg. The weight follows from the cross-section area of 161 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of HEB 320?
HEB 320 is 320 mm tall and 300 mm wide, with a web thickness of 11.5 mm, a flange thickness of 20.5 mm, and a root radius of 27 mm, per EN 10365 (DIN 1025-2).
What is the moment of inertia of HEB 320?
About the strong axis, Ix = 30,820 cm⁴ with a section modulus Wx = 1,926 cm³. About the weak axis, Iy = 9,239 cm⁴ and Wy = 616 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
HEB 320 or HEB 340 — what does one size up change?
HEB 340 is about 6% heavier (134 vs 127 kg/m) but about 19% stiffer (Ix 36,660 vs 30,820 cm⁴). Going one size up is usually the cheapest way to cut deflection, because stiffness grows much faster than weight.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About